Answer: 18 quarts
Step-by-step explanation:
Quantity of sparkling water and gape juice are used in proportion in the recipe.
Let x= quantity of sparkling water when 9 quarts of grape juice is used.
Then,

Hence, 18 quarts of sparkling water is required to mix with 9 quarts of grape juice.
Are there any answer choices
Answer:
1
Step-by-step explanation
Since you are given two points you can calculate the slope by use the formula Y1-Y2/X1-X2.
In this case:
Y1 = 5
Y2 = 7
X1 = 7
X2 = 9
(5-7)/(7-9) = -2/-2 = 1
Answer:
the answer is 49
Step-by-step explanation:
70-21=49
21-70=49
49%70=21
49%21=70